郭明達

Mold manufacturing process planning plays one of the key roles

in net shape product and process development. Conventionally, it

is performed by experienced process planner without sufficient

communication with mold designer and mold fabrication engineers.

This leads to the high costs, long planning time and

inconsistent quality of process plan. In recent years, the

concept of concurrent engineeringhas been widely employed to

improve product and process development efficiency and quality

by resolving all product life cycle issues at the early deign

stage. However, how concurrent engineering can help in mold

manufacturing process planning system is still a research issue.

The object of this research is to facilitate the

rationalization, concurrentization and automation of mold

manufacturing process planning and thus improve the efficiency

and quality, and reduce the cost of mold development by ：(1)

developing a systematic and concurrent mold manufacturing

process planning model,(2)developing a computer-based mold

manufacturing process planning system framework based on the

model, that concurrently takes issues of mold design and mold

fabrication into consideration, and (3)developing knowledge

bases to assist concurrent type of mold manufacturing process

planning.

IDEF structural analysis methodology was employed to investigate

the characteristics of mold manufacturing process planning. The

concept of concurrent engineering and the technology of system

engineering were used to develop the computer-based concurrent

mold manufacturing process planning system framework. In

consideration of mold design and mold fabrication, databases and

knowledge bases for mold manufacturing process planning were

developed using technologies of data engineering,knowledge

engineering, and object-oriented modeling.